AeroForce o2 sensor help, come inside please!
Thread Starter
Joined: Jan 2007
Posts: 2,561
Likes: 4
From: Burbank, Illinois
AeroForce o2 sensor help, come inside please! Well I have a problem with the passenger side running PIG rich after a Patriot gold spring kit, Harland Sharp 1.8's, and 36lb injectors install by a reputable shop, and is smoking I believe caused by excessive fuel and washing oil causing me to consume oil probably. I have aeroforce guages and I can monitor my o2 sensor but it does so by millivolts from 9xx to like 2xxx. Can some one please translate those milivolts to AFR please?
I would greatly appreciate it!
Zeke
I would greatly appreciate it!
Zeke
Thread Starter
Joined: Jan 2007
Posts: 2,561
Likes: 4
From: Burbank, Illinois
I'm out driving around and the drivers side is basically locked at 440-455millivolts the other side is EVERYWHERE from 65mv during coasting to 960 doing 45mph steady in 5th gear!!!!!!
WTF to do now?
WTF to do now?
Thread Starter
Joined: Jan 2007
Posts: 2,561
Likes: 4
From: Burbank, Illinois
No codes, but look at my sparkplugs after about 100-150 miles of driving. The pics arent that great sorry, cause I cant get the camera to focus, but you can get the idea, tell me what you think please.
All of the passenger side look like these. Also I am monitoring the millivolts from the o2 sensors and the passenger side o2 reads anywhere from 65 mv to 960 mv and is never steady! always up and down. The drivers side is pretty muched locked at 440-455 mv.
All of the passenger side look like these. Also I am monitoring the millivolts from the o2 sensors and the passenger side o2 reads anywhere from 65 mv to 960 mv and is never steady! always up and down. The drivers side is pretty muched locked at 440-455 mv.
Thread Starter
Joined: Jan 2007
Posts: 2,561
Likes: 4
From: Burbank, Illinois
Can anyone tell me which is the front o2 sensor on the passenger side? is it this one?
pin#25 TAN 1671 HO2S Low Signal [Bank 2 Sensor 2]
pin#26 TAN 1667 HO2S Low Signal [Bank 2 Sensor 1]
or this one?
pin#65 PPL 1670 HO2S High Signal [Bank 2 Sensor 2]
pin#66 PPL 1666 HO2S High Signal [Bank 2 Sensor 1]
thanks I think this is gonna be my problem with the o2 sensor spiking in volts all over the place!
What do you guyz think?
Source: http://www.ls2.com/boggs/torques/2001pinpcm.htm
pin#25 TAN 1671 HO2S Low Signal [Bank 2 Sensor 2]
pin#26 TAN 1667 HO2S Low Signal [Bank 2 Sensor 1]
or this one?
pin#65 PPL 1670 HO2S High Signal [Bank 2 Sensor 2]
pin#66 PPL 1666 HO2S High Signal [Bank 2 Sensor 1]
thanks I think this is gonna be my problem with the o2 sensor spiking in volts all over the place!
What do you guyz think?
Source: http://www.ls2.com/boggs/torques/2001pinpcm.htm
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TECH Resident
Joined: Aug 2003
Posts: 970
Likes: 4
From: England UK
The O2 sensors are meant to oscillate, this is a good sign they are working. Although it is swinging further wan expected. If I saw 200mV to 800mV during normal driving then I'd be happier, but what you have shouldn't be a problem.
It moves up and down due to the Short Term Fuel Trims. The PCM is trying to go around 14.62 AFR.
I believe Front O2 is Bank 2 Sensor 1.
If the sensor is sitting around 440mV I'd say its not working. I found if i unplug an O2 sensor this is what you read.
It moves up and down due to the Short Term Fuel Trims. The PCM is trying to go around 14.62 AFR.
I believe Front O2 is Bank 2 Sensor 1.
If the sensor is sitting around 440mV I'd say its not working. I found if i unplug an O2 sensor this is what you read.
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Verdad Gallardo Thread Starter
Joined: Jan 2007
Posts: 2,561
Likes: 4
From: Burbank, Illinois
Ill be checking for an exhaust leak, on the passenger side!
this is about my last resort as to why the hell I am running pig rich on the passenger side ONLY!
this is about my last resort as to why the hell I am running pig rich on the passenger side ONLY!
Thread Starter
Joined: Jan 2007
Posts: 2,561
Likes: 4
From: Burbank, Illinois
I haven't gotten a SES light!
But when I use me aeroforce guages the passenger o2 sensor does not move from the 435-450 millivolts the drivers side jumps back and forth from 78-880, which I hear is normal but for it to lock in the 435-450 range is not!
The shop had installed a new o2 sensor, 4 new plugs and o2 extension, after I took it back for the same reason. Paid for new parts and that wasn't even the cure or reason!!!
Wonder what they will tell me tomorrow!
But when I use me aeroforce guages the passenger o2 sensor does not move from the 435-450 millivolts the drivers side jumps back and forth from 78-880, which I hear is normal but for it to lock in the 435-450 range is not!
The shop had installed a new o2 sensor, 4 new plugs and o2 extension, after I took it back for the same reason. Paid for new parts and that wasn't even the cure or reason!!!
Wonder what they will tell me tomorrow!
TECH Addict
Joined: Dec 2001
Posts: 2,907
Likes: 1
From: Bergen County, NJ
850 to 900 mv is on the rich side, so above 900 you are definitely rich and the plugs prove it. The side that is not fluctuating has a problem, check the wiring then swap the 02s side to side and see if the problem moves.
